Device for taking sheets from a stack of paper or the like



W. E. MOLINS.

DEVICE FOR TAKING SHEETS FROM A STACK OF PAPER OR THE LIKE.

APPLICATION FILED FEB. 2.1921.

Patented J 11116 21, 1921.

STTES VTALTER EVERETT MOLINS, OF LONDON, ENG-LAND.

DEVICE FOR TAKING- FROM A Application filed February 2, 1921.

To all whom it may concern:

it known that I, WALTER EVERETT Momilvs, a citizen oi the United'titates of America, residing in London, England, have invented certain newand useful Improvements in Devices for Taking Sheets from a Stack oi":Paper or the like, of which the following is a specification.

The present invention has for its object an oscillating suction or otherdevice for taking sheets from a stack oi paper, the invention residingin the fact that the pivot on which the device is mounted is connectedwith a supporting device located beneath the stack of sheets of paperand is mounted in such a manner that the upper edge of the support isarranged approximately in line with the center of the pivot on which thesheet taking device oscillates, the said pivot being arranged in anadjustable holder. In correspondence with the thickness of the sheet ofpaper to be removed from the stack, the discharge slot for the sheets atthe bottom of the receptacle containing the stack of paper is renderedwider or narrower by shifting the support forward or rearward. Thus, forexample, in the case of a thick sheet of cardboard which is diflicult tobend, the support is adjusted more to the rear. thus rendering the slotwider and allowing greater length for bending than would be the casewith thin sheets of paper. The suction or like device acts 011 the mostforward portion of the sheet of paper to be removed from the stack. Ifthe position of the support is modified, the sheet-removing or suctiondevice must also be adjusted to a posi tion as near as possible to theedge of the sheet, as otherwise when the sheet of thick paper is bentdownward by the device, it would have a tendency to become detached fromthe latter. In the case of large displacements of the support thesheet-removing device would be moved too far to the rear for it to beeffective. The present invention overcomes this difficulty.

The invention is illustrated by way of eX- ample in the accompanyingdrawings, in which Figures 1 and 2 represent the device in sideelevation, and Fig. 3 is a front elevation partly in section.

The bottom of the receptacle 1 for the reception of the stack of sheetsof paper comprises a discharge aperture for the sheets and beneath thisaperture a roller 2 is arranged to support the portion of the stackSpecification of Letters Patent.

street: or rerun on THE LIKE.

Patented June 21, 1921.

Serial no. renew.

which rests over the slot. The spindles of the roller 2 are mounted in abearing 4 connected with bearing 5 in which the pivot 6,

on which the sheet-taking device oscillates, is mounted. The pivot 6 isengaged in a slot guide 7 rigidly connected with a tube 8 upon which thesheet-removing fingers 9 are arranged. By means of a cap nut arranged onthe pivot the slot guide 7 can be pressed toward the inner portion ofthe bearing arranged in the bearing 5, so that the slot guide 7 with thesheet-removing device can be shifted on the pivot 6 after the nut hasbeen slackened and retained in the desired position by tightening thenut. The supporting roller 2 is mounted in such a manner that the upperedge ot-this roller is located as far as possible in line with the axisof the pivot 6. The bearing 5 is connected with an adjustably mountedsupporting arm 10.

The operation of the device is as follows z-It thick sheets are to beremoved from the stack, the roller 2 must be come spondingly adjusted.The point of attack of the Sheetremoving device should remain unalteredas far as possible, however. and in order to attain this result (Fig. 2)the arm 10 is suitably adjusted and with it the bearing 5 and the roller2 connected therewith. The cap nut is then tightened so that the devicecannot shift upon the rotatable pivot. Buckling of the sheet of paperwhich would. otherwise take place when it is bent downward by thesheet-removing device, is prevented as the support and the pivot onwhich the device oscillates are both displaced while the sheet-takingdevice itself may remain in the same relative position in respect of thepile.

Having thus described the nature of the said invention and the bestmeans I know of carrying the same into practical efiect, I claim 1. Anoscillating device for taking sheets of paper or the like from a stack,characterized by the fact that the pivot on which the device oscillatesis connected with a support located beneath the stack of paper and ismounted in such a manner that the upper edge of the support is arrangedapproximately in line with. the axis of the pivot for the device, thispivot being arranged in an adj ustably mounted holder.

2. A device in accordance with claim 1, characterized by the fact thatthe pivot on Which the sheet-taking device oscillates is adapted to bedisplaced with reference to the latter and locked in a guide slotprovided for that purpose which is connected with said sheet-takingdevice.

3. In a sheet removing device having a receptacle for a stack of sheetsprovided with an aperture in its bottom, the combination With asupporting arm adjustable as regards the aperture, a pivot on said arm,a rocking member depending from said pivot and having a guide-slotengaging said pivot,

clamping means on said pivot for rigidly holding said guide-slot in anadjusted position on said pivot, a plurality of sheet removing fingerson said rocking member and a roller for supporting the stack of sheetsmounted in a hearing on said arm in such a manner that its upper edge isin approximate alinement with the axis of said pivot.

In testimony whereof I have signed my name to this specification.

WVALTER EVERETT MOLINS.

